Rails/ActiveRecord - 我怎样才能使它更简洁? [英] Rails/ActiveRecord - How can I make this more concise?

问题描述

在我看来，我有如下一行:

In my view I have a line such as the following:

<%= @house.person.phone_number unless @house.person.nil?  %>

似乎我必须做很多这样的事情，因为有些字段可以为空.

It seems like I have to do this sort of thing a lot as some fields are nullable.

有没有更好的写法?

我可以在模型层处理它，但据我所知，这并不是真正的模型层功能.

I could handle it at the model layer but thats not really model layer functionality, as I understand.

推荐答案

您可以使用@house.person.try(:phone_number)

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